/Engine/Plugins/Runtime/Metasound/Source/MetasoundGraphCore/Public/MetasoundNodeInterface.h
FInputDataDestinationCollection contains multiple FInputDataDestinations mapped by FNodeDataVertexKeys.
typedef [TMap](API\Runtime\Core\Containers\TMap)< [FNodeDataVertexKey](API\Plugins\MetasoundGraphCore\FNodeDataVertexKey), [FInputDataDestination](API\Plugins\MetasoundGraphCore\FInputDataDestination) > FInputDataDestinationCollection